So, the question is how would you go about training your self to manipulate your perception of time at a whim? Your brain does it by its self depending on what you're doing, so it must be possible to grasp conscious control of it and change it when need be. How exactly would you train your self to change it? I would assume some sort of meditation to get into your mind and tinker with things but that's as far as I could think of doing. Past the step of getting into a meditative state I don't know what to do next.